Subtract 42/8 from 63/16
1st number: 3 15/16, 2nd number: 5 2/8
63/16 - 42/8 is -21/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 8 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 16 × 1 = 16,
63/16 = 63 × 1/16 × 1 = 63/16 - Likewise, for the 2nd fraction, since 8 × 2 = 16,
42/8 = 42 × 2/8 × 2 = 84/16 - Subtract the two like fractions:
63/16 - 84/16 = 63 - 84/16 = -21/16
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